Purification and characterization of caffeine synthase from tea leaves.

abstract：:Experiments were designed to obtain evidence about the possible role of xanthophylls as abscisic acid (ABA) precursors in water-stressed leaves of Phaseolus vularis L. Leaves were exposed to (14)CO(2) and the specific activities of several major leaf xanthophylls and stress-induced ABA were determined after a chase in...

journal_title：Plant physiology

authors： Li Y,Walton DC

更新日期：1987-12-01 00:00:00

abstract：:With the aim to specifically study the molecular mechanisms behind photoinhibition of photosystem I, stacked spinach (Spinacia oleracea) thylakoids were irradiated at 4 degrees C with far-red light (>715 nm) exciting photosystem I, but not photosystem II. Selective excitation of photosystem I by far-red light for 130 ...

journal_title：Plant physiology

authors： Tjus SE,Scheller HV,Andersson B,Møller BL

更新日期：2001-04-01 00:00:00

abstract：:Increasing experimental evidence suggests that the tricarboxylic acid cycle in plants is of greater importance in illuminated photosynthetic tissues than previously thought. In this study, transgenic tomato (Solanum lycopersicum) plants expressing a fragment of the beta-subunit of succinyl-coenzyme A ligase in either ...

journal_title：Plant physiology

authors： Studart-Guimarães C,Fait A,Nunes-Nesi A,Carrari F,Usadel B,Fernie AR

更新日期：2007-11-01 00:00:00

abstract：:Mature maize leaves have defined cell types along the proximal distal and medial lateral axes. The patterning events that establish these axes take place early in leaf initiation. We have identified a new dominant mutation, Wavy auricle in blade1 (Wab1), which affects patterning in both axes in a dose-dependent manner...

journal_title：Plant physiology

authors： Hay A,Hake S

更新日期：2004-05-01 00:00:00

abstract：:The activity of the enzyme responsible for the synthesis of cytidine diphosphate diglyceride has been found in the 20,000g pellet of a cauliflower (Brassica oleracea) inflorescence homogenate. Greater enzyme activity was found in the pellet after treatment with 0.02% Triton X-100, or after freezing and thawing. Activi...

journal_title：Plant physiology

authors： Sumida S,Mudd JB

更新日期：1970-06-01 00:00:00

abstract：:Bacterial blight is a devastating disease of rice (Oryza sativa) caused by Xanthomonas oryzae pv oryzae (Xoo). Zinc finger proteins harboring the motif with three conserved cysteine residues and one histidine residue (CCCH) belong to a large family. Although at least 67 CCCH-type zinc finger protein genes have been id...

journal_title：Plant physiology

authors： Deng H,Liu H,Li X,Xiao J,Wang S

更新日期：2012-02-01 00:00:00

abstract：:Cyanobacteria have efficient carbon concentration mechanisms and suppress photorespiration in response to inorganic carbon (Ci) limitation. We studied intracellular Ci limitation in the slow-growing CO2/HCO3 (-)-uptake mutant ΔndhD3 (for NADH dehydrogenase subunit D3)/ndhD4 (for NADH dehydrogenase subunit D4)/cmpA (fo...

journal_title：Plant physiology

authors： Orf I,Klähn S,Schwarz D,Frank M,Hess WR,Hagemann M,Kopka J

更新日期：2015-11-01 00:00:00

abstract：:To regulate levels of holophytochrome in a spatial-specific manner and investigate the major sites of action of phytochromes during seedling development, we constructed transgenic Arabidopsis (Arabidopsis thaliana) plant lines expressing plastid-targeted mammalian biliverdin IXalpha reductase (pBVR) under regulatory c...

journal_title：Plant physiology

authors： Warnasooriya SN,Montgomery BL

更新日期：2009-01-01 00:00:00

abstract：:An oligomycin concentration that specifically inhibits oxidative phosphorylation was added to isolated barley (Hordeum vulgare L.) leaf protoplasts at various irradiances and carbon dioxide concentrations. At saturating as well as low light intensities, photosynthetic oxygen evolution was decreased as a result of the ...

journal_title：Plant physiology

authors： Kromer S,Malmberg G,Gardestrom P

更新日期：1993-07-01 00:00:00

abstract：:Prolonged growth of cell cultures of sycamore (Acer pseudoplatanus L.) on agar medium containing myo-inositol-2-(3)H resulted in incorporation of label predominately into uronosyl and pentosyl units of cell wall polysaccharides. Procedures normally used to distinguish between pectic substance and hemicellulose yielded...

journal_title：Plant physiology

authors： Roberts RM,Loewus F

更新日期：1966-11-01 00:00:00

abstract：:The assimilation of CO(2) by etiolated Hordeum vulgare seedlings during an illumination period indicates a conversion of the organisms to autotrophy.After 1 hour illumination, increases in the photo-assimilation of CO(2) are observed and the distribution of C(14) in the soluble fraction of the plants is predominantly ...

journal_title：Plant physiology

authors： Biggins J,Park RB

更新日期：1966-01-01 00:00:00

abstract：:Cold acclimation of Arabidopsis thaliana includes the expression of cold-regulated (COR) genes and the accumulation of COR polypeptides. The hydration characteristics of two COR polypeptides, COR6.6 and COR15am, have been determined and their effects on the dehydration-induced liquid crystalline-to-gel and lamellar-to...

journal_title：Plant physiology

authors： Webb MS,Gilmour SJ,Thomashow MF,Steponkus PL

更新日期：1996-05-01 00:00:00

abstract：:Under controlled environment and/or field conditions, vegetative growth (height, internode length, leaf area, shoot dry weight, grain yield) was greater in an F(1) maize hybrid than in either parental inbred. Endogenous gibberellin (GA)-like substances in apical meristem cylinders were also higher in the hybrid than i...

journal_title：Plant physiology

authors： Rood SB,Pharis RP,Koshioka M,Major DJ

更新日期：1983-03-01 00:00:00

abstract：:The factors that mediate specific responses to the plant hormone ethylene are not fully defined. In particular, it is not known how signaling at the receptor complex can control distinct subsets of ethylene responses. Mutations at the Green-ripe (Gr) and reversion to ethylene sensitivity1 (rte1) loci, which encode hom...

journal_title：Plant physiology

authors： Ma Q,Du W,Brandizzi F,Giovannoni JJ,Barry CS

更新日期：2012-12-01 00:00:00

abstract：:Nitric oxide (NO) has recently emerged as an important cellular mediator in plant defense responses. However, elucidation of the biochemical mechanisms by which NO participates in this signaling pathway is still in its infancy. We previously demonstrated that cryptogein, an elicitor of tobacco defense responses, trigg...

journal_title：Plant physiology

authors： Lamotte O,Gould K,Lecourieux D,Sequeira-Legrand A,Lebrun-Garcia A,Durner J,Pugin A,Wendehenne D

更新日期：2004-05-01 00:00:00

abstract：:The incorporation of adenosine-8-(14)C into adenosine cyclic 3':5'-monophosphate in coleoptile-first leaf segments of Avena sativa L. was investigated. Homogenates of segments incubated in adenosine-8-(14)C for either 4 or 10 hours were partially purified by thin layer chromatography followed by paper electrophoresis....

journal_title：Plant physiology

authors： Ownby JD,Ross CW

更新日期：1975-02-01 00:00:00

abstract：:It has been shown previously that an increase in ribulose diphosphate carboxylase activity occurs upon brief illumination of leaves of dark-grown Zea mays plants; an increase in ribose 5-phosphate isomerase occurs after prolonged illumination. Both of these responses to illumination are inhibited by chloramphenicol.Th...

journal_title：Plant physiology

authors： McMahon D,Bogorad L

更新日期：1968-02-01 00:00:00

abstract：:The ATPase activity of a membrane fraction from soybean (Glycine max L.) root and callus cells, presumed to be enriched in plasma membrane, has been characterized with respect to ion stimulation, pH requirement, and nucleotide specificity. The enzyme from both sources was activated by divalent cations (Mg(2+) > Mn(2+)...

journal_title：Plant physiology

authors： Hendrix DL,Kennedy RM

更新日期：1977-02-01 00:00:00

abstract：:To determine the driving forces for symplastic sugar flux between mesophyll and phloem, gradients of sugar concentrations and osmotic pressure were studied in leaf tissues of two Scrophulariaceae species, Alonsoa meridionalis and Asarina barclaiana. A. meridionalis has a typical symplastic configuration of minor-vein ...

journal_title：Plant physiology

authors： Voitsekhovskaja OV,Koroleva OA,Batashev DR,Knop C,Tomos AD,Gamalei YV,Heldt HW,Lohaus G

更新日期：2006-01-01 00:00:00

abstract：:Flooding the intercellular air spaces of leaves with water was shown to cause rapid closure of stomata in Tradescantia pallida, Lactuca serriola, Helianthus annuus, and Oenothera caespitosa. The response occurred when water was injected into the intercellular spaces, vacuum infiltrated into the intercellular spaces, o...

journal_title：Plant physiology

authors： Sibbernsen E,Mott KA

更新日期：2010-07-01 00:00:00

abstract：:Vertical orientation of emerging roots typically is the first response of plants to gravity. Although root gravitropism has been studied extensively, no conclusive data on the onset of gravisensing exist. We determined the inception of gravisensitivity in flax (Linum usitatissimum) roots by clinorotating germinating s...

journal_title：Plant physiology

authors： Ma Z,Hasenstein KH

更新日期：2006-01-01 00:00:00

abstract：:Stomatal closing movements in response to changes from CO(2)-free to CO(2)-containing air were recorded in leaf sections of Zea mays using air flow porometers. The response to CO(2) was fast; the shortest lag between the application of 300 microliters CO(2) per liter of air and the beginning of a stomatal response was...

journal_title：Plant physiology

authors： Raschke K

更新日期：1972-02-01 00:00:00

abstract：:The cereal aleurone layer is a model system for studying the regulation of transcription by gibberellin (GA) and abscisic acid (ABA). GA stimulates and ABA prevents the transcription of genes for alpha-amylases and other secreted hydrolytic enzymes, but how GA and ABA affect the transcription of other genes is largely...

journal_title：Plant physiology

authors： Bethke PC,Hwang YS,Zhu T,Jones RL

更新日期：2006-02-01 00:00:00

abstract：:SIRK is a K(+) channel identified in grapevine (Vitis vinifera), belonging to the so-called Shaker family. The highest sequence similarities it shares with the members of this family are found with channels of the KAT type, although SIRK displays a small ankyrin domain. This atypical feature provides a key to understa...

journal_title：Plant physiology

authors： Pratelli R,Lacombe B,Torregrosa L,Gaymard F,Romieu C,Thibaud JB,Sentenac H

更新日期：2002-02-01 00:00:00

abstract：:Laminarin, a linear beta-1,3 glucan (mean degree of polymerization of 33) was extracted and purified from the brown alga Laminaria digitata. Its elicitor activity on tobacco (Nicotiana tabacum) was compared to that of oligogalacturonides with a mean degree of polymerization of 10. The two oligosaccharides were perceiv...

journal_title：Plant physiology

authors： Klarzynski O,Plesse B,Joubert JM,Yvin JC,Kopp M,Kloareg B,Fritig B

更新日期：2000-11-01 00:00:00

abstract：:The metabolism of d- and l-methionine by immature cotyledons of soybean (Glycine max, L. cv Elf) grown in culture has been investigated using solid-state (13)C and (15)N nuclear magnetic resonance. d-Methionine is taken up by the cotyledons and converted to an amide, most likely by N-malonylation. About 16% of the l-m...

journal_title：Plant physiology

authors： Coker GT,Garbow JR,Schaefer J

更新日期：1987-03-01 00:00:00

abstract：:Soybean (Glycine max [L.] Merrill, cv. Dare) suspension cultures grown in Gamborg B5 medium became discolored and the cells began aggregating after 1 week in culture, especially in the absence of 2,4-dichlorophenoxyacetic acid (2,4-D). The addition of either soluble polyvinylpyrrolidine (PVP) or bovine serum albumin (...

journal_title：Plant physiology

authors： Siegel NR,Enns RK

更新日期：1979-01-01 00:00:00

abstract：:Arbuscular mycorrhiza (AM) is a widespread symbiotic association between plants and fungal microsymbionts that supports plant development under nutrient-limiting and various stress conditions. In this study, we focused on the overlapping genetic program activated by two commonly studied microsymbionts in addition to i...

journal_title：Plant physiology

authors： Hohnjec N,Vieweg MF,Pühler A,Becker A,Küster H

更新日期：2005-04-01 00:00:00

abstract：:Bicarbonate ion, not dissolved CO(2) gas, is shown to increase 4- to 5-fold the rate of dichlorophenol indophenol reduction by isolated maize (Zea mays) chloroplasts. Glutaraldehyde fixed chloroplasts continue to exhibit bicarbonate-dependent 2,6-dichlorophenol indophenol reduction. Bicarbonate is shown to act close t...

journal_title：Plant physiology

authors： Stemler A,Govindjee

更新日期：1973-08-01 00:00:00

abstract：:Tomato (Lycopersicon esculentum Mill. cv Ailsa Craig) fruit, at five stages of development, have been analyzed for their carotenoid and chlorophyll (Chl) contents, in vitro activities of phytoene synthase, phytoene desaturase, and lycopene cyclase, as well as expression of the phytoene synthase (Psy) and phytoene desa...

journal_title：Plant physiology

authors： Fraser PD,Truesdale MR,Bird CR,Schuch W,Bramley PM

更新日期：1994-05-01 00:00:00